Z motor PINs for Klipper

[patofoto]

Not able to make my Z motor working properly. Had been running Marlin with OctoPrint without problems until I decided to change to Klipper. Have everything wired properly and have checked that all the cables are also working. Both X and Y are working properly also. Only Z is not working. This are my settings on my printer.cfg file:

[stepper_z]
step_pin: PB3  #check pin number. motor not moving
dir_pin: !PA15
enable_pin: !PC12 #check. suspect not the problem. energizing properly when issuing a STEPPER_BUZZ STEPPER=stepper_z
microsteps: 16
rotation_distance: 40
endstop_pin: ^!PA1 #check pin number. not triggering
position_endstop: 0.0
position_max: 5

Motor not moving at all or Z end stop triggering. I suspect PIN number are wrong for step_pin and endstop_pin.
I have looked over PIN designation on the Pins Map page. They match my current setup. What can be wrong?. Any help would be greatly appreciated.

If I plug the Z motor into the Y axis connector the Z motor works as expected.

[markniu]

did the Z motor locked? if it can be locked or unlock that means the enable_pin works

[patofoto]

Thank you for your time. Yes. The motor locks. enable_pin is correct. Can the numbers be wrong for the step_pin and the end stop_pin?.

[markniu]

yes your pin numbers are right. which image of the OS are you using? or you can use other unused driver socket like E1 for the Z stepper.

[patofoto]

Oh, I see a possible mistake I made. I am using a regular image of Mainsail OS. Also, even if I use another socket, the stop_pin for Z is also not working properly. It is not triggering at all.

[markniu]

the reason should be the gpios on the raspberrypi influence the gpios from the stm32, for fixed that there is a python code after raspberrypi boot in the pandapi image that will let all the gpios of raspberrpi as high input.

[patofoto]

Understood. Thank you. Will try doing it correctly now.

[patofoto]

Following the Klipper install steps here:

https://github.com/markniu/PandaPi/wiki/How-to-install-klipper

Using this image file PandaPi4_20210320.img

When running install-octopi.sh on my newly flashed image I get this error:

Ign:18 http://deb.debian.org/debian buster/main arm64 virtualenv all 15.1.0+ds-2
Err:18 http://deb.debian.org/debian buster/main arm64 virtualenv all 15.1.0+ds-2
  404  Not Found [IP: 146.75.30.132 80]
Fetched 194 MB in 20s (9,708 kB/s)
E: Failed to fetch http://deb.debian.org/debian/pool/main/p/python-virtualenv/virtualenv_15.1.0+ds-2_all.deb  404  Not Found [IP: 146.75.30.132 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

If I continue without paying attention to this error and try to compile the firmware I get this:

pi@octopi:~/klipper $ make
  Creating symbolic link out/board
  Building out/autoconf.h
  Compiling out/src/sched.o
make: arm-none-eabi-gcc: Command not found
make: *** [Makefile:64: out/src/sched.o] Error 127

[markniu]

I recommend you use the latest regular image OS if you want work with klipper.
to fix the z motor problem you can copy the file (/home/pi/gpio_pullup.py ) from the pandapi image or download from the following link
and then add the autorun command(python /home/pi/gpio_pullup.py) in the start shell /etc/rc.local
reference this link
https://github.com/markniu/PandaPi/wiki/How-to-install-pandapi-to-the-latest-octopi-image#6add-the-autorun-command-in-the-start-shell-etcrclocal

[patofoto]

Thank you for all your help. I am trying to install Klipper with Mainsail not OctoPrint. Will this solution still work?. I am using Raspberry Pi Imager to install MainsailOS. This is what I get when SSH into it:

Linux mainsailos 5.15.76-v8+ #1597 SMP PREEMPT Fri Nov 4 12:16:41 GMT 2022 aarch64